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Chemical Properties of Yttrium and Neptunium


Chemical Properties of Neptunium and Yttrium


Chemical Properties

Chemical Formula
Y   
Np   

Isotopes
  
  

Known Isotopes
19   
20
20   
19

Electronegativity
  
  

Pauling Electronegativity
1.22   
38
1.36   
29

Sanderson Electronegativity
0.65   
29
Not Available   

Allred Rochow Electronegativity
1.11   
29
1.22   
26

Allen Electronegativity
1.12   
38
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.78   
16
2.64   
25

Ionization Energies
  
  

1st Energy Level
600.00 kJ/mol   
99+
604.50 kJ/mol   
99+

2nd Energy Level
1,180.00 kJ/mol   
99+
1,128.00 kJ/mol   
99+

3rd Energy Level
1,980.00 kJ/mol   
99+
1,997.00 kJ/mol   
99+

4th Energy Level
5,847.00 kJ/mol   
10
3,242.00 kJ/mol   
99+

5th Energy Level
7,430.00 kJ/mol   
14
Not Available   

6th Energy Level
8,970.00 kJ/mol   
17
Not Available   

7th Energy level
11,190.00 kJ/mol   
18
Not Available   

8th Energy Level
12,450.00 kJ/mol   
18
Not Available   

9th Energy Level
14,110.00 kJ/mol   
19
Not Available   

10th Energy Level
18,400.00 kJ/mol   
17
Not Available   

11th Energy Level
19,900.00 kJ/mol   
18
Not Available   

12th Energy Level
36,090.00 kJ/mol   
5
Not Available   

Electrochemical Equivalent
1.11 g/amp-hr   
99+
1.77 g/amp-hr   
39

Electron Work Function
3.10 eV   
35
Not Available   

Other Chemical Properties
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   

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